Enter The Sari/Park; Air Sync - Avaya DECT R4 Installation Manual

8.4.14 Enter the SARI/PARK

The SARI is the license for the DECT R4 system.
1. In the left-hand panel, select DECT. Select the SARI tab.
2. Enter the SARI code provided with the DECT R4 equipment.
3. Click OK.

8.4.15 Air Sync

Base stations in the DECT R4 system need to be synchronized with each other. This can be done with a signal as low as -
90dB between base stations.
One base station is assigned as the 'air synch master', typically the master base station. Each other base station can
synch directly with it or indirectly via a synchronization chain. However, it is preferable that the number of synchronization
'hops' between any particular base station and its air synch master base station is kept as low as possible. To help achieve
this it is recommended that the air synch master is placed centrally within the set of base stations.
Where possible, each base station should be placed in synchronization range of more than one base station. That allows
the base stations to maintain synchronization should one base station fail or be switched off for maintenance. The process
of synchronizing by the shortest route to the air synch master when in synchronization range of multiple base stations is
automatic.
Advanced Scenario: Separated Locations
In most scenarios, the master base station is used as the air synch master for all the other base stations and that is the
scenario documented in this manual. However, in scenarios where you have base stations in separate locations that are
not within synchronization range of each other, it is permissible to assign separate air synch masters in each location.
However there must be absolutely no overlap (<-90dB) between the separate groups of base stations. Any overlap will
cause frequent lose of synchronization.
1. In the left-hand panel, select DECT. Select the Air Sync tab.
2. Set the Sync Mode to Master.
3. Enable LED Indication. This enables the amber flashing mode of the base station's LED 2 which is used to indicate
when the base station has no air synchronization signal but does have call traffic in progress.
4. Click OK.
DECT R4
IP Office Release 7.0 15-601047 Issue 03a (21 February 2011)
Page 140